12,748 Answered Questions for the topic physics

Physics

07/29/25

What is the velocity
What is the velocity (in metres per second) of a Canadian Forces CF-18 fighter jet that travels 8.864 km [S] in 0.297 min?
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Physics Biology Chemistry

06/30/25

How does entropy relate to everyday life?
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Expert Answers •4
Physics

06/28/25

What Is a Wave, Really?
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Physics

06/28/25

What is electric current, and how is it related to voltage and resistance?
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06/28/25

How do I solve projectile motion problems in physics?
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06/28/25

What is the difference between kinetic and potential energy in physics?
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06/23/25

Solve the PDE of third order by using separation variables method
u_tt+c^2 u_xxx=0 0<x<l t>0the conditionsu(0,t)=u(l,t)=0u_xx(0,t)=u_xx(l,t)=0u(x,0)=f(x), u_t (x,0)=g(x)
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Physics Science

06/14/25

What are Newton's Laws of Motions?
I don't understand the three laws that well, I need help to clarify each one
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Physics Astronomy

05/30/25

Meaning of a "iRocket Science" Equation
Please help a non-rocket scientist out:What does this equation mean?: GxmxM/R=mxVESC2 /2And/or where can I find out more about this?It appears on a NASA Kennedy Space Center, Florida, "iRocket... more
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Physics

05/29/25

Reviews of Justin
Is there a way I can submit five stars for all of the sessions my son had with his AP Physics tutor, Justin? (Justin tutored my son in both AP Physics 1 last year and AP physics C this year). He's... more
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Physics

05/27/25

coupon code and how to redeem it
how do we get the coupon code? redeem coupon, we never get any credits for first time user. it always said when apply that coupon is not available and there has been an error. thank you
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Physics

05/05/25

Simple Harmonic Motion of Vertical Spring
Suppose a spring stretches 3.9 cm when an object with mass 10 g is hung from it. Now, the object is replaced with a block with mass 25 g. The mass oscillates in simple harmonic motion. Find the... more
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Physics

04/29/25

what is purple and violet and what are the differences? In the visible light spectrum, why violet is commonly referred as a spectral color while purple is not even though they are almost similar?
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Physics

04/10/25

Physics Solution
Problem:A block of mass m=2.5kg is placed on a frictionless inclined plane that makes an angle of θ=30∘ with the horizontal.(a) Draw a free-body diagram showing all the forces acting on the block.... more
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Physics

04/08/25

The Spinning Disk and Sliding Block
Please help me with this exercise!A uniform solid disk of mass M = 5 kg and radius R = 0.4 m is mounted on a frictionless horizontal axle through its center, allowing it to rotate freely in a... more
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Physics

04/05/25

Rolling Object on a Moving Ramp
A solid cylinder of mass m = 2 kg and radius R = 0.1 m is placed at the top of a frictionless ramp of height h = 1.5 m. The ramp itself has a mass M = 5 kg and rests on a frictionless horizontal... more
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Physics

03/30/25

Consider a history graph of a traveling wave pulse

Consider a history graph of a traveling wave pulse at position x = -6 m. The wave pulse is traveling in the +x-direction with a velocity of 2 m/s. Use this information to construct a snapshot... more
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03/29/25

Ordinary Differential Equations question
As the engineer in charge of the calibration software, you are to create the correct algorithm to analyzethe desk on which the printer is. Let us focus on some part of this. Assume the machine is... more
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03/28/25

Differential Equations problem
As the engineer in charge of the calibration software, you are to create the correct algorithm to analyzethe desk on which the printer is. Let us focus on some part of this. Assume the machine is... more
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Expert Answers •1
Physics

03/26/25

Help me with this homework
A circular loop of wire with a radius of 0.2 m is placed in a uniform magnetic field of 0.5 T. The magnetic field is perpendicular to the plane of the loop and is reduced to zero in 0.1... more
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Physics

03/26/25

Thin film interference question
Suppose two microscope slide are held apart by a couple of hairs, so that there is a space between the slides of 0.80 micrometers. (Thus, we have an air space between the glass slides. The hairs... more
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Physics Science Astronomy

03/23/25

How do I apply specific astronomy concepts I have learned to calculations?
Hi, I have a few questions about concepts I've learned and using them with equations.Firstly, I know there are differences in calculations when it comes to north and southern hemispheres. When... more
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Physics Astronomy

03/23/25

Methods to calculate speed and distance of objects in orbit
I know that you can use Kepler's second law to calculate the speed an object travels at perihelion but arethere any other methods that I can use to calculate this? For example if I'm only given the... more
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Physics Astronomy

03/14/25

How to calculate sidereal period
How do I calculate the sidereal period of planets when I'm not given the orbital period?I know the Earth has an orbital period of 365.25 days, but then we are only given the time between successive... more
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Physics

03/09/25

Can somebody please help me with these physics questions?

1.) A bug from South America known as Rhodnius prolixus extracts the blood of animals. Suppose Rhodnius prolixus extracts 0.300 cm3 of blood in 25.0 min from a human arm through its feeding tube of... more
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